Improved filter for artesian wells



Mgg/@ UNITED STATES PATENT OFFICE.

JOHN OLARY AND ELIJAH B. TORBEY, OF ITHACA, NEW YORK.

IMPROlJ-ED FILTER FOR ARTESIAN WELLS.

Specification forming part of Letters Patent No. 50,686, dated October 3l, 1865.

To all whom 'it may concern:

Be it known that we, J onN CLARY and ELI- JAH B. TORREY, ot' Ithaca, in the `county of Tompkins and State of New York, have made anew and useful Improvementin Filters for ArtesianWell-Tubes; andwedoherebydeclarethe following to be a full,clear,and exact description of the nat-ure, construction, and operation of the same, sufficient to enable one skilled in the art to which it appertains to construct and use the same, reference being had tothe accompanying drawings, in which- Figure 1 is an elevation. Fig. 2 is a partial elevation and partial section.

rlhe improvement consists in a close-fitting coil of wire around the lower orperforated section of an Artesian or other well tube to prevent the entrance thereinto ofdirt, sand, gravel, or other extraneous matter. The mode of attaching it so as to enable its usein connection with this method ot' sinking the tube will be fully explained`hereinafter.

In this specification of invention we do not contine the use of our tilter to well-tubes which are shod with a pointed plug and are driven into the ground, though that is the form illustrated in the accompanying drawings. There are many other forms of pumps to whose lower or induction section it is applicable, as will be apparent on a consideration ofthe nature and scope of the invention.

A represents the lower end ofthe well-tube, which is presumed to be driven into the ground by means ot blows on the upper end, its entrance into the soil being facilitated by the pointed plug E, which, during the process of sinking, is in immediate contactwith the lower end of the tube, the latter resting upon the shoulder I), as shown in Fig. 1. As soon as the tube has been driven to the required depth, so as to reach the vein or stratum ot' water, the tube A, Fig. 2, is lifted, when, the plug E re- Y maining at the depth to which it has been driven, the perforated tube or series of rods C is withdrawn from the tube A until its upper end catches upon the flange of the coupling B, which prevents the two portions from being drawn apart, the coupling B being screwed to the tube A.

D is a coil of wire closely wrapped around the sect-ion C, and permitting the passage oi the water in a thin sheet between the adjacent wires. Thelower end of the coil rests upon the shoulder c of the plug E.

The section O, with the wire strainer around it,is embraced,as will be seen, within the tube A during the process of driving, and is thereby preserved from injury, as no strain comes yupon it, the tube resting immediately on the plug E, Fig. 1. The portion'e ofthe plug tills the lower oritice of the tube and prevents the entrance of dirt, dmc., while driving, as the filtering or straining coil does when the section C has been withdrawn and the pump which is attached to the upper endl of the well-tube isili operation.

rlhe tilterer thus constructed is preferred to perforations or wire-cloth, and for an extended entering-aperture ot` minute diameter it is believed to be superior to any other metallic device yet devised.

The section E may bea perforated or slotted pipe, or, as represented, it may consist ot' rods forming a skeleton,around which the wire is coiled. In any case the coil must be preserved from exterior' strain, which may tend to separate the wires bydeieoting itfiom the vcrtical by bending the coil forming an exterior filtering-jacket, to which no strain ever comes to mar its usefulness.

Having described our invention, what we claim therein as new, anddesire to secure by Letters Patent, is-

The filtering-jacket o r inclosing-coil which surrounds the lower section of the well or pump tube, forming a strainer for that portion into which the water enters, substantially as described.

JOHN OLARY. ELIJAH B. TORREY.

Witnesses:

G. W. BAKER, HENRY A. Sr. JOHN. 

